I got an Eraser PP drilled down at the BES to try 3/8" forward pitch and he did a great job fitting/drilling the ball. I finally feel confident that the ball is not coming off my hand as I try to increase my ball speed. I used this one for a couple outings before I decided to have other balls drilled like it at my local driller. When I dropped off the balls I wanted redrilled, I also dropped off the Eraser and its drill specs so they could match it up with as much info as I had. I'm thinking a competent driller should be able to match these up pretty closely, but that's not what happened. When I picked them up, the fit seemed OK, but when I roll these newly drilled balls, they just fall off my hand almost like they did before. Somethings off, but I don't know what. Also, the thumb slugs have a gap between their edge and the hole -- kind of shoddy workmanship for a shop where I've never seen this before. Anyway, I can feel the one moving when I put my thumb in it. The kid I dealt with on these said it's not going anywhere, but it's like a rattle in a golf shaft -- it's there, you can hear it and it's just annoying -- especially when you pay good money for the work. I'm going to take them back in and have them fix the drills -- I'm just not sure how to approach the whole "You may not know how to measure your stuff" issue. What would you do?